Weed in Thailand for Tourists 2026: Bangkok, Phuket, Pattaya & Chiang Mai Rules

Quick summary

• Cannabis in Thailand is medical-only in 2026. Recreational use is not allowed, for Thais or foreigners.
• Cannabis flower can be dispensed only with a prescription from a licensed practitioner, for no more than 30 days' supply.
• Since 30 April 2026, new flower-selling licences go only to healthcare facilities, licensed medicine/herbal-product sellers and certified folk healers.
• No smoking in public, no online or vending-machine sales, and no advertising.
• Never fly with cannabis, into or out of Thailand. Airport arrests in Chiang Mai, Samui and elsewhere show customs is watching.
• Inspections are focused on tourist and major cities, with recent crackdowns reported in Bangkok and Phuket.

What changed since 2022

Thailand removed cannabis from its narcotics list in 2022, the first Asian country to do so, and storefronts spread quickly, according to Khaosod English. That openness has been rolled back step by step:

• June 2022: the Ministry of Public Health listed cannabis as a controlled herb, effective 17 June 2022 (Matichon), and issued a replacement notification on 11 November 2022 (Thai PBS).
• 26 June 2025: a new health ministry notification narrowed control to the flower and made a prescription mandatory for every sale. The Tourism Authority of Thailand told visitors that what once looked tolerated "was never legally authorised" (TAT Newsroom).
• 30 April 2026: a further ministerial regulation limited who may apply to sell flower to three types of premises, and required odour/smoke control and trained staff on duty (Bangkok Biznews).
• 22 September 2026: the Cabinet approved a draft Cannabis Control Act that would fine users for non-medical use. It is not yet law (Hfocus).

For the full legal picture, see our Thailand cannabis law 2026 summary.

What a tourist may and may not do

The rules apply to visitors exactly as they do to residents. Under the 2025 notification, flower may only be sold to someone holding a prescription. Eligible prescribers include medical doctors, Thai traditional and applied Thai traditional medicine practitioners, folk healers, Chinese medicine practitioners, dentists and pharmacists, each treating their own patient (Thai PBS). The quantity must match the treatment and cannot exceed 30 days. TAT adds that the prescription has to be issued in Thailand.

The same notification bans selling flower for smoking on business premises, except when a licensed practitioner treats their own patient there. Sales online, through vending machines, at temples, in dormitories, parks, zoos and amusement parks are all prohibited, as is advertising.

The Public Health Minister stated in September 2026 that cannabis is for medical use only and that every dispensing must rest on a prescription signed by a doctor (Hfocus). Our guide to legal cannabis use in Thailand walks through the patient process. If you are mainly curious about CBD products, read CBD vs THC explained first.

Caveat: This page summarises rules reported by Thai government agencies and news outlets as of 11 October 2026. It is not legal or medical advice, and cannabis-official.com is an independent site, not a government body. A new Cannabis Control Act is moving through the legislative process and could change penalties and definitions.

Airports, customs and crossing borders

Taking cannabis out of Thailand without official export permission is illegal. The UK Foreign Office says fines start at 30,000 baht per kilogram, unpaid fines can lead to detention, and offenders may land on an immigration watchlist (GOV.UK). Bringing cannabis in requires a licence and customs clearance, and illegal import is punishable under the Customs Act 2017, according to the Royal Thai Embassy in Brussels.

Enforcement is real. In March 2025, police and customs at Chiang Mai International Airport arrested five foreigners with about 120 kg of dried flower in checked bags bound for London and Brussels; police said similar attempts had been detected at Suvarnabhumi, Phuket and Koh Samui (Khaosod English). That same week, Samui Airport officers arrested four British men with 131 kg, part of 375 kg seized that week (Khaosod English).

Your next country matters too. Smartraveller warns that cannabis may be illegal at your destination or transit point, even as residue on belongings or traces in your body (Smartraveller). The Thai embassy lists South Korea, Japan, Vietnam, Indonesia, Singapore and Malaysia among places where penalties can be severe.

City notes: Bangkok, Phuket, Pattaya, Chiang Mai, Koh Samui

The ministry says inspection teams will concentrate on tourist cities and major provincial cities (Hfocus). Sourced, city-specific reports so far:

• Bangkok: In May 2026, DTAM, Watthana district officials and police inspected six shops on Sukhumvit Soi 11–13. Nationwide figures released then covered more than 9,158 inspections, 2,175 of them in Bangkok, with 2,149 licences suspended and 418 revoked (Thairath English). In June, DTAM reported checks after complaints in Watthana and Sathon (Khaosod English).
• Phuket: On 17 July 2026, a joint provincial team raided five shops in Mueang Phuket, arrested five people and seized goods valued at over 2.9 million baht, mostly for selling flower without a licence (Thai Post).
• Pattaya: Since the 2026 regulation, enforcement powers extend to provincial administration officials, explicitly including officials in Bangkok and Pattaya (Bangkok Biznews).
• Chiang Mai and Koh Samui: the main sourced enforcement stories are the 2025 airport arrests above.

Penalties and how to spot a licensed outlet

Using cannabis outside medical purposes, smoking in public or exporting it can each bring different sanctions. Cannabis smoke and odour were declared a nuisance in 2022; ignoring an official order to stop can mean up to three months in jail, a fine of up to 25,000 baht, or both (The Bangkok Insight). See our cannabis penalties overview for the rest.

To check a shop, use DTAM's MC-GIS map or the Mor Prom app, which show licence status and expiry (Bangkok Biznews). Licensed premises display a colour sticker (red: expires 2026, yellow: 2027, green: 2028) with an 8-digit establishment code (Thairath English). The minister has said shops missing from the system should be presumed illegal (Hfocus). Our step-by-step licensed shop checker guide explains what to look for. Violations can be reported via LINE @traffyfondue.

Hotels, condos and driving

The nuisance rules cover private premises as well as public places, so a complaint from a neighbour about smoke in a condo or hotel can prompt local officials to act (The Bangkok Insight). Separately, many hotels and condo buildings have their own no-smoking house rules; check before you light anything, including tobacco. Note that vapes are illegal in Thailand even for personal use (Smartraveller), so cannabis vape pens are doubly risky.

On driving, we could not confirm a cannabis-specific THC limit for Thai roads. Australian advice notes police may demand urine samples from suspected drug users in tourist areas. The safe rule is simple: if you have taken any cannabis medicine, do not drive or ride a motorbike.

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